An universal in-situ phosphating strategy to fabricate high-performance Co2P-based bifunctional oxygen electrocatalyst derived from conjugated polyaniline-phytic acid copolymer
作者机构：Hubei Key Laboratory of Photoelectric Materials and Devices School of Material Science and EngineeringHubei Normal University College of Chemistry and Materials EngineeringWenzhou University Hangzhou Hangyang Chemical and Medical Engineering Lo. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Nankai University Innovative Centre for Flexible Devices (iFLEX)Max Planck-NTU Joint Lab for Artificial SensesSchool of Materials Science and EngineeringNanyang Technological University
出 版 物：《Rare Metals》 (稀有金属(英文版))
年 卷 期：2024年第11期
页 面：5823-5834页
核心收录：
学科分类：0808[工学-电气工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：financially supported by Hubei Provincial Natural Science Foundation and Huangshi of China(No.2022CFD039) the National Natural Science Foundation of China (Nos.22075072,52202284 and 52301272) the College Students Innovation and Entrepreneurship Training Program of China(Nos.D202305271035223001,D202305271407085899 and D202305272109110950) Zhejiang Provincial Natural Science Foundation (No.LQ23E020002) Wenzhou Key Scientific and Technological Innovation Research Projects (No.ZG2023053) Wenzhou Natural Science Foundation (Nos.ZG2022032,G20220019 and G20220021) the Cooperation between Industry and Education Project of Ministry of Education (No.220601318235513) the State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University (No.EIPE22208) the Doctoral Innovation Foundation of Wenzhou University (No.3162023001001)
摘 要：Electrocatalysts play a crucial role in the performance of rechargeable Zn-air batteries（ZABs）,but it is still difficult to produce nonprecious materials with excellent bifunctional oxygen reduction reactions（ORR） and oxygen evolution reactions（OER）.Herein,conjugated polyaniline-phytic acid polymer（pANI-PA） was directly calcined to fabricate Co2P nanoparticles embedded in N,P-doped carbon network composites（Co2P@pDC-PA） for metal-air *** resulting pANI-PA derived Co2Pbased carbon composite exhibits exceptional bifunctional ORR/OER activities with a half-wave potential of 0.79 V for ORR and 1.62 V of over-potential for OER at 10mA·*** to the synergistic effect of its unique three-dimensional（3D） structure,N,P-doped carbon framework,and encapsulated Co2P nanoparticles,as-fabricated composite can be used as a highly efficient air cathode in the rechargeable metal-air *** assembled rechargeable ZAB demonstrates a high-power density of 190.0 mW·cm-2and remarkable cycling stability over1000 *** study introduced a novel approach that paves the way for the efficient,cost-effective,and scalable production of bifunctional electrocatalysts for rechargeable ZABs.
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